Cement-block machine.



F. J. EMAL & C. P. HORN. CEMENT BLOCK MACHINE.

APPLICATION FILED nnc.14.1'9os.

Patented Now 9, 1909.

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F. J. EMAL 8; G. P. HORN. CEMENT BLOGK MACHINE; APPLICATION FILED no. 14,1908.

939,236. Patented N0v.9, 1909.

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F. J. EMAL & G.- P. HORN. CEMENT BLOCK MAOHINE. APPLICATION PILEDDEC. 14,1908. 939,236, Patented Nov. 9, 1909.

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avwzntozs wwwmwa P. J. BMAL & 0. P9110311. CEMENT BLOCK MACHINE. APPLICATION FILED DEG- 1 4,1908. 939,236, Patented Nov, 9, 1909.

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UNITED STATES PATENT OFFICE.

FRANKLIN J. EMAL AND CHARLES P. HORN, OF PICKRELL, NEBRASKA.

CEMENT-BLOCK MACHINE.

To all whom it may concern:

Be it known that we, FRANKLIN J. EMAL and CHARLES P. HORN, citizens of the United States, residing at Pickrell, in the county of Gage and State of Nebraska, have invented certain new and useful Improvements in Cement-Block Machines, of which the following is a specification.

This invention relates to improvements in cement-block machines for forming building blocks, where cement, sand and water or other like substances are mixed for this purpose, and has for its object the provision of a machine of this class which will be composed of few parts, to be economically constructed, and which may be compactly built for durable wear; also which will have its parts arranged for convenient management, and which will be reliable and accurate in operation for forming building blocks.

The invention also has reference to features conducing to rapidity of operation in forming the blocks and especially to accuracy of movements of the excavating tubes or cores.

For the accomplishment of the foregoing and discharge of other functions hereinafter set forth, the invention consists of the novel combination and arrangement of parts as described herein and in the appended claims, and as illustrated by the drawing, wherein;-

Figure 1 is a vertical, side view of a cement block machine embodying our invention, the molding-box being closed, the slidable excavating tubes or cores occupying a position within the molding box. Fig. 2 is a plan view of the parts shown in Fig. 1, the operating lever being partly broken away. Fig. 3 is a view somewhat similar to that of Fig. 1, showing the core removed from the molding box, and showing corresponding position of parts. Fig. 4.- is a partly broken away, plan view of the parts shown in Fig. 5, the block and pallet being removed. Fig. 5 is a vertical, side view of the machine, the bottom and end-plates of the molding box being swung downward, and the block ready for removal. The vertical, stationary mold-plate is partly in section, to show a core-opening. Fig. 6 is a view showing the reverse side of the machine to that shown in Fig. 1. Fig. 7 is a perspective view of the block, formed by the machine. Fig. 8 is a detail for clearly Specification of Letters Patent.

Application filed December 14, 1908.

Patented Nov. 9, 1909.

Serial No. 467,339.

showing devices for moving the core. Fig. 9 is a vertical, side view of the vertical apertured molding plate, with excavating tubes therein.

Explaining more in detail the parts of the drawing, numeral 9 indicates a cementblock machine preferably having a rectangular, stationary bed or frame 10, comprising side plates 11, suitably braced by transverse guide-plates 12 and 13, and having at its rear the vertical supporting posts 1 1.

lVe provide the molding-box 15, comprising the base-plate 16, the pallet-sustaining or rear plate 17, these plates having a fixed angular relation relative to each other and disposed transversely upon and near the rear end of the frame and pivotally mounted at 18 upon side pieces 11, and adapted to have swinging movements of substantially 90 degrees to exchange their planes of location; end-plates 19 being ,pivotally mounted upon the pallet-sustaining or rear plate 17, by hinges 20. As thus described, plates 16 and 17 are disposed at right angles and cooperate in molding two of the faces of block 21; they are held in their fixed angular relation by any suitable means, as the two members 17 and 18 of brackethinge 49, the latter having its pivotal mounting indicated at 18, already mentioned, and said plates have their swinging movements to occupy the closed or open positions shown, respectively, in Figs. 1 and 5.

The core comprises the pair of adjacently disposed, horizontal, parallel and slidable cutting-tubes or excavator 22. These tubes have a length, preferably greater than double the width of plate 16, and exteriorly, midway of their open ends are provided with yoke 23, rigidly secured thereon. This yoke transversely incloses the tubes intermediate guides 12 and 13, and upon its lower side, at its ends, is provided with outwardly-projecting lugs 2% which engage within longitudinal slots 25 formed between the horizontal and parallel guide-rails 26, said guiderails, preferably, being a part of arms 27 which extend upwardly from side plates 11 of the frame. Guides 12 and 13 are preferably bolted to arms 27, as shown. While these guides assist in holding the frame of the machine together, they discharge a function in confining tubes 22 to a true, parallel,

horizontal movement while they pass within or are withdrawn from the molding box, lugs 24 within slots 25 also assisting in these movements.

We provide the vertical stationary plate 28, disposed parallel and adjacent guide 12, this being the front side-plate of the molding box. This plate is apertured at 29, and in operation, the excavator or tubes 22 may have slidable movements by use of operating-lever 30. This lever is constructed rigid with shaft 31 mounted near the middle and upon the lower part of the frame as shown. Arm 32 is rigidly mounted upon shaft 31. WVe provide lever 33 having one of its ends mounted upon shaft 34:, said shaft being mounted upon the lower part of the frame and outwardly of the pivotal mounting of shaft 31, its opposite end having transverse lugs 35 seated in longitudinal slot 36 formed in arm 37 of yoke 23. Link 38 has one of its ends pivotally mounted at 39 between the terminals of lever 33, its opposite end being pivotally mounted at 10 upon arm 32, and by this simple arrangement tubes 22 may be operated by lever and the forward or rearward movements of the tubes will be smooth and regular, lugs 24 within slots 25, and guides 12 and 13 operating to prevent irregular or uneven movements of the tubes.

By the construction as described blocks may be conveniently and effectively formed. The parts being in the position shown in Fig. 3, material may be thrown into the molding box. It will be noted that since the core is not within the molding box at this time it is not obtrusive to prevent or interfere with the filling of the box, and thereby operation is greatly facilitated, and consistency of the material within the box will be more uniform when thus filled. At this time the end-plates are closed, and are held in a closed position by means of latches 41 and brackets 12, the pallet 13, preferably of wood, being vertically disposed adjacent plate 17. Vhen the molding box is filled, the material being in a plastic condition, excavating tubes 22 are moved by operation of lever 30 and traverse the box so that the ends of the tubes rest against pallet 43, as shown in Fig. 2, and while passing through, material within the box enters the tubes. It will be'noted that since guides 12 and 13 are spaced a considerable distance apart, and yoke 23 is intermediate these guides, tubes 22 will move horizontally and will traverse the molding box and contents thereof in a straight line, this being true whether the tubes move forwardly or rearwardly; lugs at this time will move in slot 36 under operation of lever 30. Any surplus material at the open top of the molding box is at this time removed so that the block will have a flat, upper surface. After the block is thus formed and tubes 22 are removed, plate 17 is swung downward to rest upon supporting posts 1 1, the hinged end plates 19 being then lowered and swung downward, building block 21 resting upon pallet 43. The pallet with the block thereon may then be removed, and the method above outlined may be repeated in the formation of other blocks. The block thus formed is therefore provided with two adjacent openings 14 extending therethrough, and any suitable, indented panels 45 may be formed in the ends of the block by employing corresponding projecting facets 46 upon the oppositely-disposed end-plates 19. It is apparent, however that the devices herein shown would operate a single excavating tube by changing the bearings thereof; also it is not important relative to the size or exact location of the panels formed for the block, and while we have described construction with considerable exactness, we do not wish to be understood as limiting ourselves to these details, except so far as limited by the appended claims.

As described, the block machine consists of few parts and may be economically constructed, and it will be noted that the devices for moving the excavating tubes are conveniently arranged. Since these tubes have an equal diameter their entire length, their true alinement with the openings formed in the block must be maintalned during their removal from said block, and the guides herein shown, in connection with the yoke accomplishes this function, so that the slidable movements of the tubes will be uniform.

Having fully described our invention, what we claim as our invention, is,- V

1. In a machine for molding blocks, the combination of a stationary frame; a plurality of mold plates mounted upon the frame to form a molding box with core openings in one of its sides; a pair of guides adjacently disposed and secured upon the frame; a pair of adjacent, hollow, cylindrical members seated within said guides and within said core-openings; a yoke intermediate said guides transversely secured upon the cylindrical members; means upon said yoke for causing a sliding movement of the cylindrical members within said guides and core openings.

2. In a machine for the purpose named, the combination with the frame; a molding box upon the frame and comprising sideplates and end'plates one of said side-plates being apertured; a pair of guides adjacently secured upon the frame; a longitudinal, tubular excavator seated within said guides and traversing said apertured sideplate; a slotted yoke intermediate said guides and secured upon said excavator; a

lever having one of its ends mounted upon the frame, its opposite end engaging the slot of said yoke; means to actuate said lever to cause sliding movements of said longitudinal, tubular excavator while seated within said guides and apertured side-plates.

3. In a machine for molding blocks, the combination of a stationary frame having longitudinal, adjacent guides; a plurality of mold plates mounted upon the frame to form a molding box with core openings in one of its sides; a pair of adjacent, transversely-disposed guides secured upon the frame; a pair of adjacent, hollow cylindrical members seated within said transversely-disposed guides and within said core openings; a yoke intermediate the transversely-disposed guides and having a rigid mounting upon the cylindrical members and provided with end-portions engaging between the longitudinal, adjacent guides of said frame; means upon said yoke for causing sliding movements of the cylindrical members within said adjacent, transverselydisposed guides and within said core openings, said end-portions of the yoke engaging between said longitudinal, adjacent guides of the frame.

In testimony whereof we have aflixed our signatures in presence of two witnesses.

FRANKLIN J. EMAL. CHARLES P. HORN. \Vitnesses Lewis MQPHERsON, F. L. POTHAST. 

